Keyboard tray



FIG. 1 is a top perspective view of the keyboard tray showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is an end elevational view thereof, the opposite end is a mirror image. 

The ornamental design for a keyboard tray, as shown and described. 